ACI-ASTM CA15 Steel vs. ASTM A217 Grade C12A
Both ACI-ASTM CA15 steel and ASTM A217 grade C12A are iron alloys. Both are furnished in the normalized and tempered condition. They have a very high 95% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CA15 steel and the bottom bar is ASTM A217 grade C12A.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 | |
| 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 21 | |
| 21 |
| Fatigue Strength, MPa | 370 | |
| 320 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Reduction in Area, % | 34 | |
| 50 |
| Shear Modulus, GPa | 76 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 700 | |
| 670 |
| Tensile Strength: Yield (Proof), MPa | 570 | |
| 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 750 | |
| 600 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1460 |
| Melting Onset (Solidus), °C | 1500 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 25 | |
| 26 |
| Thermal Expansion, µm/m-K | 10 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 8.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.5 | |
| 7.0 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 2.1 |
| Embodied Energy, MJ/kg | 28 | |
| 28 |
| Embodied Water, L/kg | 100 | |
| 87 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 13 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 820 | |
| 560 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 | |
| 24 |
| Strength to Weight: Bending, points | 23 | |
| 22 |
| Thermal Diffusivity, mm2/s | 6.7 | |
| 6.9 |
| Thermal Shock Resistance, points | 26 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.080 to 0.12 |
| Chromium (Cr), % | 11.5 to 14 | |
| 8.0 to 9.5 |
| Iron (Fe), % | 81.8 to 88.5 | |
| 87.6 to 90.5 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0.85 to 1.1 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 to 0.4 |
| Niobium (Nb), % | 0 | |
| 0.060 to 0.1 |
| Nitrogen (N), % | 0 | |
| 0.030 to 0.070 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.5 | |
| 0.2 to 0.5 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.010 |